Casio G-Shock Men's Watch GA-2100-1A1 Analog-Digital GA-2100 Series Carbon Core Guard Structure G-SHOCK G-STEEL *1 Smartphone app for use

*1 Smartphone app for use with G-SHOCK Smartphone Link models

battery life: 2 years on CR2016

battery life: 3 years on SR726W × 2

The stainless steel strap has a unique texture

Casio G-Shock Men's Watch GA-2100-1A1 Analog-Digital GA-2100 Series Carbon Core Guard Structure G-SHOCK G-STEEL *1 Smartphone app for useFeatures Carbon Core Guard structure Ever since the first DW 5000C went on sale back in 1983, G SHOCK has continued to push the limits of timekeeping toughness while creating new and original designs. These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW 5000C. Analog digital timekeeping comes packed into a no nonsense simple design without